EP 2019488 A4 20130227 - DRIVE DEVICE
Title (en)
DRIVE DEVICE
Title (de)
ANTRIEBSVORRICHTUNG
Title (fr)
DISPOSITIF D'ENTRAÎNEMENT
Publication
Application
Priority
- JP 2007059946 W 20070515
- JP 2006135596 A 20060515
- JP 2007042485 A 20070222
Abstract (en)
[origin: US2007273437A1] Output signal waveform having high input signal reproducibility is outputted from inductive load or the like. Output signals V 1 a and V 1 b obtained by feeding back an output signal Vp-n 1 at output terminals 50 and 51 across load L 1 to input terminals 9 a and 9 b are compared with an input signal Vin to detect an error between signals; a first error suppression signal Vout 1 is produced such that the detected error between the signals is suppressed; inclination of first error suppression signal Vout 1 is detected, and a second error suppression signal Vout 2 is produced such that inclination error to input signal Vin is suppressed based on the detected inclination signal; and the ratio between the period that electric power is supplied to the load L 1 and the period that electric power is not supplied to the load L 1 is modified according to the error of the error suppression signal.
IPC 8 full level
H03K 17/687 (2006.01); H03K 5/06 (2006.01); H03K 7/08 (2006.01); H03K 17/284 (2006.01)
CPC (source: EP KR US)
H03F 1/3211 (2013.01 - EP US); H03F 1/34 (2013.01 - EP US); H03F 3/2173 (2013.01 - EP US); H03F 3/387 (2013.01 - EP US); H03F 3/45475 (2013.01 - EP US); H03K 5/06 (2013.01 - EP US); H03K 7/08 (2013.01 - EP US); H03K 17/284 (2013.01 - EP US); H03K 17/687 (2013.01 - KR); H03F 2200/351 (2013.01 - EP US); H03F 2203/45138 (2013.01 - EP US); H03F 2203/45526 (2013.01 - EP US)
Citation (search report)
- [XA] WO 0171905 A2 20010927 - JL AUDIO INC [US]
- [XA] EP 1394934 A2 20040303 - FLYING MOLE CORP [JP]
- [A] DE 3939616 A1 19900705 - PIONEER ELECTRONIC CORP [JP]
- See references of WO 2007132842A1
Designated contracting state (EPC)
GB
DOCDB simple family (publication)
US 2007273437 A1 20071129; US 7463090 B2 20081209; EP 2019488 A1 20090128; EP 2019488 A4 20130227; EP 2019488 B1 20141224; JP 4759050 B2 20110831; JP WO2007132842 A1 20090924; KR 100977505 B1 20100823; KR 20080090463 A 20081008; WO 2007132842 A1 20071122
DOCDB simple family (application)
US 79859207 A 20070515; EP 07743381 A 20070515; JP 2007059946 W 20070515; JP 2008515560 A 20070515; KR 20087018270 A 20070515